Term
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Definition
| Articulates medially with the sternum at the sternoclavicular joint and laterally with the acromion of the scapula at the acromioclavicular joint. |
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Definition
| Broad upper part of sternum. Articulates with the first two ribs and clavicle. Has an oval articulatar surface on the lateral, posterior, and superior surface. |
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Definition
| Superior border of the manubrium. On either side of the sternal notch are the sternoclavicular joints. |
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Definition
| The joint where the manubrium and sternal body come together. Forms a 140 degree angle. Attaches to the costal cartilage of the 2nd rib. |
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Definition
| Posterior to the manubrium. Attaches to the costal cartilage of the 3rd - 6th rib. Origin of the pectoralis major. |
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Definition
| Small cartilaginous of lower part of sternum. The upper-lateral notch connects with the 7th rib. |
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Definition
| Long, S shaped bone. Keeps limb away from body. Medial end forms joint with manubrium and lateral end forms joint with acromion of the scapula. The acromial end is flattened. Articulates medially with the sternum at the sternoclavicular joint and laterally with the scapula at the acromioclavicular joint. |
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Term
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Definition
| Projects forward form the superior-lateral-anterior surface of the scapula. Origin of the Coracobrachialis and Biceps short head muscles. Insertion of the pectoralis minor muscle. |
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Term
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Definition
| Interior-posterior bump on the clavicle that attaches to a conoid ligament that attaches to the coracoid process on the scapula. The conoid ligament is a part of the coracoclavicular ligament. |
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Term
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Definition
| A ridge on the inferior, anterior and lateral part of the clavicle. Attaches the trapezoid ligament to the coracoid process. The trapezoid ligament is a part of the coracoclavicular ligament. |
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Term
| Coracoclavicular Ligament |
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Definition
| Connects the clavicle to the coracoid process of the scapula. Sometimes associated with the acromioclavicular joint. |
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Term
| Tubercle of Costoclavicular Ligament |
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Definition
| Bump on the inferior sternal side which attaches the clavicle to the costal cartilage of the 1st rib. |
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Term
| Superior angle of the scapula |
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Definition
| The superior-medial angle on the scapula. Insertion point for the Levator scapulae muscle (posterior) and the serratus anterior muscle (anterior). |
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Term
| Lateral angle of the scapula |
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Definition
| The angle of the scapula closest to the glenoid cavity. |
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Term
| Inferior angle of the scapula |
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Definition
| The inferior-medial angle of the scapula. Origin for the Latissimus dorsi muscle and insertion for the serratus anterior muscle. |
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Term
| Superior Border of the scapula |
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Definition
| The superior border. Origin for the Omohyoid muscle. |
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Term
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Definition
| Of the scapula. Insertion point for the serratus anterior muscle on the anterior side and the Levator scapulae, Rhomboid minor, and Rhomboid major on the posterior side. |
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Term
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Definition
| Of the scapula. Origin of Teres Major and Teres Minor. |
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Definition
| The articular surface (depression) receiving the head of the humerous. Located at the lateral angle of the scapula. |
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Definition
| Finger-like projection forward from the anterior-lateral side of the scapula. Origin of the coracobrachialis and short head of the bicep. Insertion of the pectoralis minor. |
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Term
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Definition
| The shallow depression on the anterior side of the scapula. Origin of the subscapularis. |
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Term
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Definition
| Superior of the spine of the scapula. Origin of the supraspinatus (a part of the rotator cuff muscle group). |
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Definition
| Posterior ridge extending from the medial border (~T3 on spine) to the lateral angle and turning into the acromion. Insertion of the Trapezius and origin of the deltoid. |
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Term
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Definition
| Approximatley 135 degree angle. Comes together with the glenoid cavity to form the glenohumeral joint. Smooth for articulating. |
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Term
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Definition
Teres Major
O: Inferior Angle of Scapula
I: Medialip of intertubercle groove of humerus.
Inn: Lower Subscapular Nerve
A: External rotation of the scapula. |
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Term
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Definition
Teres Minor
O: Upper two-thirds of Lateral Border of Scapular
I: Greater tubercle below infraspinatus.
Inn: Axillary Nerve.
A: External rotation of scapula.
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Term
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Definition
Infraspinatus
O: Infraspinatus Fossa of Scapula
I: Greater Tubercle of Humerous, below Supraspinatus
Innerv: Suprascapular nerve from C5-C6
A: External Rotation
ADL: Back hand motion, write, open doors, and reach behind you.
Injury: Trouble turning shoulder laterally, reaching behind, playing racketball. |
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Term
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Definition
Coracobrachialis
O: Anterior portion of the scapula's coracoid process.
I: Anteromedial surface of the midshaft of the humerus.
Innerv: Musculocutaneous (C5-C7)
A: Flexion and Adduction of arm. |
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Term
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Definition
Pectoralis Minor
O: Ribs 3-5
I: Coracoid Process of Scapula
Innerv: Medial Pectoral Nerve (C8-T1)
A: Depression of shoulder. Downward rotation of scapula.
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Term
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Definition
Pectoralis Major
O: Medial 2/3 of clavical, anterior manubrium, body of sternum, costal cartilage of ribs 1-6, and aponeurosis of external oblique.
I: Lateral tip of bicepital groove and crest of greater tubercle.
N: Upper clavical head (Lateral Pectoral C5, C6, C7) and lower sternal head (Medial pectoral C8 and T1)
A: Internal rotation, adduction, horizontal adduction, depresses and inferiorly rotates scapula, and assists with flexion, extension from the fully flexed position. |
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Term
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Definition
Biceps Brachii
O: Short Head = coracoid process of the scapula
Long Head = supraglenoid tubercle
I: Radial Tuberosity and bicipital aponeurosis to fascia of the forearm.
N: Musculocutaneous Nerve (C5, C6)
A: Flexion and supination of forearm |
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